Finding the Fourth Proportional to 118,077,866.72, 162,948,516.84 and 65,156,928.32

Step by Step Solution

1. Step 1: Write the proportion equation
   118,077,866.72 : 162,948,516.84 = 65,156,928.32 : x
2. Step 2: Convert to fraction form
   118,077,866.72/162,948,516.84 = 65,156,928.32/x
3. Step 3: Cross multiply
   118,077,866.72x = 162,948,516.84 × 65,156,928.32
4. Step 4: Simplify right side
   118,077,866.72x = 10,617,224,831,594,194
5. Step 5: Solve for x
   x = 10,617,224,831,594,194/118,077,866.72
6. Step 6: Final answer
   x = 89,917,146.43