Finding the Fourth Proportional to 23,166,123.30, 31,973,087.61 and 12,856,158.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,166,123.30 : 31,973,087.61 = 12,856,158.18 : x
2. Step 2: Convert to fraction form
   23,166,123.30/31,973,087.61 = 12,856,158.18/x
3. Step 3: Cross multiply
   23,166,123.30x = 31,973,087.61 × 12,856,158.18
4. Step 4: Simplify right side
   23,166,123.30x = 411,051,071,817,158.12
5. Step 5: Solve for x
   x = 411,051,071,817,158.12/23,166,123.30
6. Step 6: Final answer
   x = 17,743,627.90