Finding the Fourth Proportional to 93,312,105.70, 139,968,158.55 and 89,060,577.70

Step by Step Solution

1. Step 1: Write the proportion equation
   93,312,105.70 : 139,968,158.55 = 89,060,577.70 : x
2. Step 2: Convert to fraction form
   93,312,105.70/139,968,158.55 = 89,060,577.70/x
3. Step 3: Cross multiply
   93,312,105.70x = 139,968,158.55 × 89,060,577.70
4. Step 4: Simplify right side
   93,312,105.70x = 12,465,645,060,068,196
5. Step 5: Solve for x
   x = 12,465,645,060,068,196/93,312,105.70
6. Step 6: Final answer
   x = 133,590,866.55