Finding the Fourth Proportional to 620,139,641.30, 930,345,667.29 and 183,406,276.56

Step by Step Solution

1. Step 1: Write the proportion equation
   620,139,641.30 : 930,345,667.29 = 183,406,276.56 : x
2. Step 2: Convert to fraction form
   620,139,641.30/930,345,667.29 = 183,406,276.56/x
3. Step 3: Cross multiply
   620,139,641.30x = 930,345,667.29 × 183,406,276.56
4. Step 4: Simplify right side
   620,139,641.30x = 170,631,234,751,387,488
5. Step 5: Solve for x
   x = 170,631,234,751,387,488/620,139,641.30
6. Step 6: Final answer
   x = 275,149,697.56