Finding the Fourth Proportional to 99,381,947.16, 149,072,958.61 and 99,238,335.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,381,947.16 : 149,072,958.61 = 99,238,335.83 : x
2. Step 2: Convert to fraction form
   99,381,947.16/149,072,958.61 = 99,238,335.83/x
3. Step 3: Cross multiply
   99,381,947.16x = 149,072,958.61 × 99,238,335.83
4. Step 4: Simplify right side
   99,381,947.16x = 14,793,752,329,835,454
5. Step 5: Solve for x
   x = 14,793,752,329,835,454/99,381,947.16
6. Step 6: Final answer
   x = 148,857,541.56