Finding the Fourth Proportional to 151,609,456.72, 209,221,050.11 and 81,994,837.52

Step by Step Solution

1. Step 1: Write the proportion equation
   151,609,456.72 : 209,221,050.11 = 81,994,837.52 : x
2. Step 2: Convert to fraction form
   151,609,456.72/209,221,050.11 = 81,994,837.52/x
3. Step 3: Cross multiply
   151,609,456.72x = 209,221,050.11 × 81,994,837.52
4. Step 4: Simplify right side
   151,609,456.72x = 17,155,046,009,533,228
5. Step 5: Solve for x
   x = 17,155,046,009,533,228/151,609,456.72
6. Step 6: Final answer
   x = 113,152,875.69