Finding the Fourth Proportional to 56,931,924.72, 85,397,121.63 and 13,801,499.94

Step by Step Solution

1. Step 1: Write the proportion equation
   56,931,924.72 : 85,397,121.63 = 13,801,499.94 : x
2. Step 2: Convert to fraction form
   56,931,924.72/85,397,121.63 = 13,801,499.94/x
3. Step 3: Cross multiply
   56,931,924.72x = 85,397,121.63 × 13,801,499.94
4. Step 4: Simplify right side
   56,931,924.72x = 1,178,608,369,052,617.50
5. Step 5: Solve for x
   x = 1,178,608,369,052,617.50/56,931,924.72
6. Step 6: Final answer
   x = 20,702,064.35