Finding the Fourth Proportional to 117,748,717.91, 162,490,260.72 and 64,824,897.35

Step by Step Solution

1. Step 1: Write the proportion equation
   117,748,717.91 : 162,490,260.72 = 64,824,897.35 : x
2. Step 2: Convert to fraction form
   117,748,717.91/162,490,260.72 = 64,824,897.35/x
3. Step 3: Cross multiply
   117,748,717.91x = 162,490,260.72 × 64,824,897.35
4. Step 4: Simplify right side
   117,748,717.91x = 10,533,414,471,548,738
5. Step 5: Solve for x
   x = 10,533,414,471,548,738/117,748,717.91
6. Step 6: Final answer
   x = 89,456,723.25