Finding the Fourth Proportional to 112,434,271.91, 155,159,711.88 and 65,402,630.36

Step by Step Solution

1. Step 1: Write the proportion equation
   112,434,271.91 : 155,159,711.88 = 65,402,630.36 : x
2. Step 2: Convert to fraction form
   112,434,271.91/155,159,711.88 = 65,402,630.36/x
3. Step 3: Cross multiply
   112,434,271.91x = 155,159,711.88 × 65,402,630.36
4. Step 4: Simplify right side
   112,434,271.91x = 10,147,853,282,780,748
5. Step 5: Solve for x
   x = 10,147,853,282,780,748/112,434,271.91
6. Step 6: Final answer
   x = 90,255,872.26