Finding the Fourth Proportional to 272,019.59, 375,279.54 and 157,277.21

Step by Step Solution

1. Step 1: Write the proportion equation
   272,019.59 : 375,279.54 = 157,277.21 : x
2. Step 2: Convert to fraction form
   272,019.59/375,279.54 = 157,277.21/x
3. Step 3: Cross multiply
   272,019.59x = 375,279.54 × 157,277.21
4. Step 4: Simplify right side
   272,019.59x = 59,022,917,144.89
5. Step 5: Solve for x
   x = 59,022,917,144.89/272,019.59
6. Step 6: Final answer
   x = 216,980.40