Finding the Fourth Proportional to 10,142,118.31, 15,213,294.33 and 3,665,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142,118.31 : 15,213,294.33 = 3,665,685.50 : x
2. Step 2: Convert to fraction form
   10,142,118.31/15,213,294.33 = 3,665,685.50/x
3. Step 3: Cross multiply
   10,142,118.31x = 15,213,294.33 × 3,665,685.50
4. Step 4: Simplify right side
   10,142,118.31x = 55,767,152,338,318.31
5. Step 5: Solve for x
   x = 55,767,152,338,318.31/10,142,118.31
6. Step 6: Final answer
   x = 5,498,570.48