Finding the Fourth Proportional to 142,482,419.72, 196,626,117.30 and 77,292,323.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,482,419.72 : 196,626,117.30 = 77,292,323.72 : x
2. Step 2: Convert to fraction form
   142,482,419.72/196,626,117.30 = 77,292,323.72/x
3. Step 3: Cross multiply
   142,482,419.72x = 196,626,117.30 × 77,292,323.72
4. Step 4: Simplify right side
   142,482,419.72x = 15,197,689,510,158,294
5. Step 5: Solve for x
   x = 15,197,689,510,158,294/142,482,419.72
6. Step 6: Final answer
   x = 106,663,611.83