Finding the Fourth Proportional to 42,017,101.72, 58,031,429.88 and 28,242,151

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017,101.72 : 58,031,429.88 = 28,242,151 : x
2. Step 2: Convert to fraction form
   42,017,101.72/58,031,429.88 = 28,242,151/x
3. Step 3: Cross multiply
   42,017,101.72x = 58,031,429.88 × 28,242,151
4. Step 4: Simplify right side
   42,017,101.72x = 1,638,932,405,416,872
5. Step 5: Solve for x
   x = 1,638,932,405,416,872/42,017,101.72
6. Step 6: Final answer
   x = 39,006,317.39