Finding the Fourth Proportional to 117,561,393.53, 162,224,756.52 and 64,635,258.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,561,393.53 : 162,224,756.52 = 64,635,258.15 : x
2. Step 2: Convert to fraction form
   117,561,393.53/162,224,756.52 = 64,635,258.15/x
3. Step 3: Cross multiply
   117,561,393.53x = 162,224,756.52 × 64,635,258.15
4. Step 4: Simplify right side
   117,561,393.53x = 10,485,439,016,112,610
5. Step 5: Solve for x
   x = 10,485,439,016,112,610/117,561,393.53
6. Step 6: Final answer
   x = 89,191,176.64