Finding the Fourth Proportional to 116,905,662.18, 161,330,127.57 and 64,698,298.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,905,662.18 : 161,330,127.57 = 64,698,298.02 : x
2. Step 2: Convert to fraction form
   116,905,662.18/161,330,127.57 = 64,698,298.02/x
3. Step 3: Cross multiply
   116,905,662.18x = 161,330,127.57 × 64,698,298.02
4. Step 4: Simplify right side
   116,905,662.18x = 10,437,784,673,128,478
5. Step 5: Solve for x
   x = 10,437,784,673,128,478/116,905,662.18
6. Step 6: Final answer
   x = 89,283,824.91