Finding the Fourth Proportional to 72,129,061.98, 99,506,827.35 and 47,716,776.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,129,061.98 : 99,506,827.35 = 47,716,776.54 : x
2. Step 2: Convert to fraction form
   72,129,061.98/99,506,827.35 = 47,716,776.54/x
3. Step 3: Cross multiply
   72,129,061.98x = 99,506,827.35 × 47,716,776.54
4. Step 4: Simplify right side
   72,129,061.98x = 4,748,145,044,864,310
5. Step 5: Solve for x
   x = 4,748,145,044,864,310/72,129,061.98
6. Step 6: Final answer
   x = 65,828,459.63