Finding the Fourth Proportional to 120,369,012.17, 166,106,426.16 and 70,812,576.72

Step by Step Solution

1. Step 1: Write the proportion equation
   120,369,012.17 : 166,106,426.16 = 70,812,576.72 : x
2. Step 2: Convert to fraction form
   120,369,012.17/166,106,426.16 = 70,812,576.72/x
3. Step 3: Cross multiply
   120,369,012.17x = 166,106,426.16 × 70,812,576.72
4. Step 4: Simplify right side
   120,369,012.17x = 11,762,424,046,140,014
5. Step 5: Solve for x
   x = 11,762,424,046,140,014/120,369,012.17
6. Step 6: Final answer
   x = 97,719,702.39