Finding the Fourth Proportional to 113,674,259.18, 156,864,036.85 and 64,111,670.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,674,259.18 : 156,864,036.85 = 64,111,670.57 : x
2. Step 2: Convert to fraction form
   113,674,259.18/156,864,036.85 = 64,111,670.57/x
3. Step 3: Cross multiply
   113,674,259.18x = 156,864,036.85 × 64,111,670.57
4. Step 4: Simplify right side
   113,674,259.18x = 10,056,815,455,039,420
5. Step 5: Solve for x
   x = 10,056,815,455,039,420/113,674,259.18
6. Step 6: Final answer
   x = 88,470,472.80