Finding the Fourth Proportional to 99,642,076.80, 149,526,100.80 and 58,701,436.80

Step by Step Solution

1. Step 1: Write the proportion equation
   99,642,076.80 : 149,526,100.80 = 58,701,436.80 : x
2. Step 2: Convert to fraction form
   99,642,076.80/149,526,100.80 = 58,701,436.80/x
3. Step 3: Cross multiply
   99,642,076.80x = 149,526,100.80 × 58,701,436.80
4. Step 4: Simplify right side
   99,642,076.80x = 8,777,396,956,061,630
5. Step 5: Solve for x
   x = 8,777,396,956,061,630/99,642,076.80
6. Step 6: Final answer
   x = 88,089,261.46