Finding the Fourth Proportional to 99,976,645.51, 137,912,229.89 and 58,156,002.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,976,645.51 : 137,912,229.89 = 58,156,002.88 : x
2. Step 2: Convert to fraction form
   99,976,645.51/137,912,229.89 = 58,156,002.88/x
3. Step 3: Cross multiply
   99,976,645.51x = 137,912,229.89 × 58,156,002.88
4. Step 4: Simplify right side
   99,976,645.51x = 8,020,424,038,470,672
5. Step 5: Solve for x
   x = 8,020,424,038,470,672/99,976,645.51
6. Step 6: Final answer
   x = 80,222,976.05