Finding the Fourth Proportional to 78,385,991.76, 108,173,088.90 and 43,106,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,385,991.76 : 108,173,088.90 = 43,106,071.50 : x
2. Step 2: Convert to fraction form
   78,385,991.76/108,173,088.90 = 43,106,071.50/x
3. Step 3: Cross multiply
   78,385,991.76x = 108,173,088.90 × 43,106,071.50
4. Step 4: Simplify right side
   78,385,991.76x = 4,662,916,904,499,257
5. Step 5: Solve for x
   x = 4,662,916,904,499,257/78,385,991.76
6. Step 6: Final answer
   x = 59,486,609.79