Finding the Fourth Proportional to 151,389,273.83, 208,917,281.86 and 81,774,655.10

Step by Step Solution

1. Step 1: Write the proportion equation
   151,389,273.83 : 208,917,281.86 = 81,774,655.10 : x
2. Step 2: Convert to fraction form
   151,389,273.83/208,917,281.86 = 81,774,655.10/x
3. Step 3: Cross multiply
   151,389,273.83x = 208,917,281.86 × 81,774,655.10
4. Step 4: Simplify right side
   151,389,273.83x = 17,084,138,667,281,962
5. Step 5: Solve for x
   x = 17,084,138,667,281,962/151,389,273.83
6. Step 6: Final answer
   x = 112,849,069.39