Finding the Fourth Proportional to 151,610,112.72, 209,221,955.87 and 81,995,493.58

Step by Step Solution

1. Step 1: Write the proportion equation
   151,610,112.72 : 209,221,955.87 = 81,995,493.58 : x
2. Step 2: Convert to fraction form
   151,610,112.72/209,221,955.87 = 81,995,493.58/x
3. Step 3: Cross multiply
   151,610,112.72x = 209,221,955.87 × 81,995,493.58
4. Step 4: Simplify right side
   151,610,112.72x = 17,155,257,539,333,628
5. Step 5: Solve for x
   x = 17,155,257,539,333,628/151,610,112.72
6. Step 6: Final answer
   x = 113,153,781.31