Finding the Fourth Proportional to 342,525.59, 513,837.59 and 105,886.72

Step by Step Solution

1. Step 1: Write the proportion equation
   342,525.59 : 513,837.59 = 105,886.72 : x
2. Step 2: Convert to fraction form
   342,525.59/513,837.59 = 105,886.72/x
3. Step 3: Cross multiply
   342,525.59x = 513,837.59 × 105,886.72
4. Step 4: Simplify right side
   342,525.59x = 54,408,577,017.80
5. Step 5: Solve for x
   x = 54,408,577,017.80/342,525.59
6. Step 6: Final answer
   x = 158,845.29