Finding the Fourth Proportional to 138,452,900.05, 191,123,832.59 and 86,267,718.87

Step by Step Solution

1. Step 1: Write the proportion equation
   138,452,900.05 : 191,123,832.59 = 86,267,718.87 : x
2. Step 2: Convert to fraction form
   138,452,900.05/191,123,832.59 = 86,267,718.87/x
3. Step 3: Cross multiply
   138,452,900.05x = 191,123,832.59 × 86,267,718.87
4. Step 4: Simplify right side
   138,452,900.05x = 16,487,817,059,231,066
5. Step 5: Solve for x
   x = 16,487,817,059,231,066/138,452,900.05
6. Step 6: Final answer
   x = 119,086,108.37