Finding the Fourth Proportional to 42,779.36, 64,406.84 and 37,064

Step by Step Solution

1. Step 1: Write the proportion equation
   42,779.36 : 64,406.84 = 37,064 : x
2. Step 2: Convert to fraction form
   42,779.36/64,406.84 = 37,064/x
3. Step 3: Cross multiply
   42,779.36x = 64,406.84 × 37,064
4. Step 4: Simplify right side
   42,779.36x = 2,387,175,117.76
5. Step 5: Solve for x
   x = 2,387,175,117.76/42,779.36
6. Step 6: Final answer
   x = 55,802.03