Finding the Fourth Proportional to 56,793,256.30, 78,374,714.61 and 30,687,774.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,793,256.30 : 78,374,714.61 = 30,687,774.04 : x
2. Step 2: Convert to fraction form
   56,793,256.30/78,374,714.61 = 30,687,774.04/x
3. Step 3: Cross multiply
   56,793,256.30x = 78,374,714.61 × 30,687,774.04
4. Step 4: Simplify right side
   56,793,256.30x = 2,405,145,532,401,166.50
5. Step 5: Solve for x
   x = 2,405,145,532,401,166.50/56,793,256.30
6. Step 6: Final answer
   x = 42,349,139.48