Finding the Fourth Proportional to 116,885,636.52, 161,302,367.37 and 64,676,872.68

Step by Step Solution

1. Step 1: Write the proportion equation
   116,885,636.52 : 161,302,367.37 = 64,676,872.68 : x
2. Step 2: Convert to fraction form
   116,885,636.52/161,302,367.37 = 64,676,872.68/x
3. Step 3: Cross multiply
   116,885,636.52x = 161,302,367.37 × 64,676,872.68
4. Step 4: Simplify right side
   116,885,636.52x = 10,432,532,677,372,076
5. Step 5: Solve for x
   x = 10,432,532,677,372,076/116,885,636.52
6. Step 6: Final answer
   x = 89,254,188.86